I bought these pads to replace the stock ones on my modded Fostex T50rp. The extra padding behind the ear really helped keeping my ear away from the baffle, increasing comfort drastically aswell as improving the soundstage/picture. Getting the pads on my T50 was a bit tricky due to the fit is a tiny bit off.
I have used these pads everyday for six months now, and they are holding up very well. (Looks as if new). When they are eventually worn out i would def go for another pair of these exact pads:)